| ??? 03/15/10 15:35 Read: times |
#174154 - Old fashioned 8031 dev boards Responding to: ???'s previous message |
In the old days of UV windowed controllers, the development cycle was a little convoluted. Ask your students how long it took to erase, let alone program these devices.
So those dev boards would upload and run directly from RAM. When the program was debugged, then mask-rommed devices could be ordered. There should be many schematics of those dev boards. I even think that Keil assume a ROM monitor may be present. So it is completely possible to do. As Michael has suggested, it is hardly cutting edge. But if you have a shed load of boards, go for it. If you have to buy or make anything new, there are modern single-chip solutions that would be faster and cheaper. David. |
| Topic | Author | Date |
| Controlling /EA with a port pin? | 01/01/70 00:00 | |
| Why would you want do this?? | 01/01/70 00:00 | |
| Allowing system upgrades via MIDI sysex in the field | 01/01/70 00:00 | |
| So why on an 8051? | 01/01/70 00:00 | |
| Challenge?? | 01/01/70 00:00 | |
| Old fashioned 8031 dev boards | 01/01/70 00:00 | |
| Helpful points | 01/01/70 00:00 | |
| Good match | 01/01/70 00:00 | |
Budget | 01/01/70 00:00 | |
| See value to an extent... | 01/01/70 00:00 | |
| Internal XDATA addresable as XCODE? | 01/01/70 00:00 | |
| Executing code from XRAM | 01/01/70 00:00 | |
| Code in OnBoard XRAM | 01/01/70 00:00 | |
| Don't overlook other options ... | 01/01/70 00:00 | |
| FX2 | 01/01/70 00:00 | |
| I bet you can't | 01/01/70 00:00 | |
| Ideally a single chip design | 01/01/70 00:00 |